评论
打印
Hey there! Squeaks and I have been learning about different ways that animals can sense the world.
嘿! 我和吱吱一直在学习动物感知世界的不同方式。
That means they use different body parts to help them gather information about the world, to help them grow or survive!
这意味着它们使用不同的身体部位来帮助自己收集有关世界的信息，帮助自己生长或生存!
What senses can you name, Squeaks?
吱吱，你能说出什么感觉?
Oooh!
噢!
Yes, we hear with our ears, we smell with our nose… and we see with our eyes!
是的，我们用耳朵听，用鼻子闻，用眼睛看!
Ooh, good question!
哦,好问题!
Squeaks wants to know if all animals sense the world like we do.
吱吱想知道是否所有的动物都像我们一样感知世界。
Many animals have very interesting senses.
许多动物有非常有趣的感觉。
Eagles have two eyes, just like we do.
鹰有两只眼睛，和我们一样。
But their eyes are much stronger than a human’s!
但它们的眼睛比人类的要强大得多!
They can see more colors than people can.
他们能看到比人更多的颜色。
And they can spot a rabbit from way up high in the sky when they’re searching for food!
当它们寻找食物时，它们可以从高空发现兔子!
Some animals’ eyes are even more interesting than that!
有些动物的眼睛甚至比这更有趣!
Let’s look at this picture of a spider!
让我们看看这张蜘蛛的图片!
Do you notice anything about it?
你注意到什么了吗?
Ooh yeah!
哦 是!
We have two eyes, but this spider has eight eyes!
我们有两只眼睛，但这只蜘蛛有八只眼睛!
Since the spider’s eyes are different from ours, its sense of sight is also a little different from the sense of sight most people have.
由于蜘蛛的眼睛与我们的不同，它的视觉也与大多数人的视觉有一点不同。
The eyes all around their heads are very good at seeing movement.
它们头部周围的眼睛非常善于观察活动。
So it can help the spider spot something it wants to eat, like a tasty bug, as soon as it moves!
所以蜘蛛的眼睛可以帮助它找到想要吃的东西，比如一只美味的昆虫，只要它一移动!
Well if you think that’s impressive, some insects, like bees and dragonflies, technically have thousands of eyes!
如果你觉得这令人印象深刻的话，有些昆虫，比如蜜蜂和蜻蜓，严格来说有成千上万只眼睛!
Right…
对……
when we look at a dragonfly, we don’t see thousands of eyes.
当我们观察一只蜻蜓时，我们看到的不是成千上万只眼睛。
It looks like they have two big eyes here and here.
看起来它们这里和这里有两只大眼睛。
But if we take a closer look, you’ll notice that each of these eyes are made of thousands of smaller eyes bundled together.
但如果我们仔细观察，你会发现每只眼睛都是由成千上万只小眼睛捆绑在一起组成的。
Special eyes like these are called compound eyes.
像这样的特殊眼睛叫做复眼。
Oh, good question, Squeaks!
哦，吱吱，好问题!
Squeaks wants to know if they see lots of pictures at once…
吱吱想知道他们是否同时看到了很多图片..
like a wall of screens all showing the same picture.
就像一面墙的屏幕都在显示同一幅图片一样。
Well, to answer that, let’s first talk about how our own eyes work.
为了回答这个问题，我们先来谈谈我们自己的眼睛是如何工作的。
Each of a person’s eyes has one lens.
每个人的眼睛都有一个晶状体。
That’s a special part of the eye that lets in the light that we see.
这是眼睛的一个特殊部分，它让我们看到的光线进入。
It helps make a sharp picture of the thing we’re looking at.
它能让我们看到我们正在看的东西的清晰图像。
Then, the picture goes to our brain, which helps us understand what we’re seeing.
然后，图像进入我们的大脑，帮助我们理解我们所看到的。
But in dragonflies, the top part of each of the smaller eyes inside the compound eye is called a facet.
但在蜻蜓的复眼中，每个小眼睛的顶部被称为小眼面。
If we could look really closely at a single one of these facets, we would see that every single one has a lens, and every one lets in light.
如果我们能仔细观察其中的一个小眼面，我们会发现每一个小眼面都有一个晶状体，每一个都让光线进入。
Each lens sends an image to the dragonfly’s brain, where, they’re put together to make one picture.
每个晶状体将图像发送到蜻蜓的大脑，在那里，它们被组合在一起，形成一幅图像。
Ooh yeah, it is a little bit like putting together a jigsaw puzzle.
哦，是的，这有点像拼图游戏。
Together, a bunch of small pictures make one bigger picture.
把一堆小图片放在一起，就会形成一幅更大的图片。
All of the parts of the compound eye help the insect to see.
复眼的所有部分都帮助昆虫看东西。
Scientists think that the picture is kind of blurry, though…
科学家们认为这幅图像有点模糊，不过……
and looks kind of like what happens when you zoom in too much on a tablet or phone picture.
这看起来有点像你在平板电脑或手机上放大太多图片时所发生的情况。
That’s a great question!
这是个好问题!
Squeaks wants to know: why do some animals have compound eyes?
吱吱想知道:为什么有些动物有复眼?
It doesn’t seem to make sense, especially if the picture is blurry.
这似乎没有意义，特别是如果图片是模糊的。
A dragonfly’s big compound eyes wrap almost the whole way around its head.
蜻蜓的大复眼几乎包住了整个头部。
So it can see what’s going on behind it and in front of it… at the same time!
这样它就能同时看到前面和后面发生的事情!
That’s pretty awesome for a few reasons.
这是非常棒的，有几个原因。
First, it’s kinda hard to sneak up behind a dragonfly.
首先，从蜻蜓后面偷袭有点困难。
The picture from a dragonfly’s eyes might be blurry…
蜻蜓眼睛的图像可能是模糊的……
but the insect can definitely tell how big something is, and if it’s moving or not.
但昆虫绝对可以分辨出物体的大小，以及它是否在移动。
That makes a dragonfly pretty hard to catch for animals that might want to eat it!
这使得蜻蜓很难被那些想要吃掉它的动物捕捉到!
Second, being able to see so much means that the dragonfly is an excellent hunter.
第二，能够看到这么多的东西意味着蜻蜓是一名优秀的捕猎者。
A dragonfly can eat hundreds of insects every single night!
一只蜻蜓每晚可以吃几百只昆虫!
Yes, that was really interesting!
是的，那真的很有趣!
Hey…
嘿...
let’s SEE if we can find out some more cool facts about how animals sense their world!
让我们看看我们是否能发现更多关于动物如何感知他们的世界的很酷的事实!
Thanks for joining us here at the Fort.
感谢您在福特堡观看我们的节目。
If you want to keep learning and having fun with Squeaks, me, and all of our other friends,
如果你想继续与吱吱、我和我们所有的朋友一起学习和玩耍，
be sure to hit the subscribe button,
一定要点击订阅按钮，
and we'll see you next time here on SciShow Kids!
我们下期《少儿科学秀》节目再见!
